<html>

<head>
  <title>修改成绩</title>
</head>

<body>
  <form action="/action/grade/edit/{{stu_sn}}/{{cou_sn}}" method="post">
    成绩：<input type="text" name="grade" value="{{grade}}">
    <input type="submit" value="修改">
  </form>
  <hr>
  <a href="/"> 回到成绩列表 </a>
</body>

</html>